//
//  NSDictionary+BFKit.m
//  BFKit
//
//  The MIT License (MIT)
//
//  Copyright (c) 2014 - 2016 Fabrizio Brancati. All rights reserved.
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in all
//  copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//  SOFTWARE.

#import "NSDictionary+BFKit.h"

@implementation NSDictionary (BFKit)

- (NSString * _Nonnull)dictionaryToJson {
    return [self dictionaryToJSON];
}

- (NSString * _Nonnull)dictionaryToJSON {
    return [NSDictionary dictionaryToJSON:self];
}

+ (NSString * _Nonnull)dictionaryToJson:(NSDictionary * _Nonnull)dictionary {
    return [self dictionaryToJSON:dictionary];
}

+ (NSString * _Nonnull)dictionaryToJSON:(NSDictionary * _Nonnull)dictionary {
    NSString *json = nil;
    NSError *error = nil;
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dictionary options:NSJSONWritingPrettyPrinted error:&error];
    
    if (!jsonData) {
        return @"{}";
    } else if (!error) {
        json = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
        return json;
    } else {
        return error.localizedDescription;
    }
}

- (id _Nullable)safeObjectForKey:(NSString * _Nonnull )key {
    NSArray *keysArray = [self allKeys];
    if ([keysArray containsObject:key]) {
        return [self objectForKey:key];
    } else {
        return nil;
    }
}

@end